1. What is Hydraulic Motor Torque?

Definition: Hydraulic motor torque is the rotational force produced by a hydraulic motor, calculated based on system pressure and motor displacement.

Purpose: This calculation helps in selecting the right hydraulic motor for applications requiring specific torque outputs.

2. How Does the Formula Work?

The calculator uses the formula:

Where:

• \( T \) — Torque (lb-ft)
• \( P \) — Pressure (psi)
• \( D_m \) — Motor displacement (in³/rev)
• \( 2\pi \) — Constant for unit conversion

Explanation: The formula converts hydraulic pressure and motor displacement into rotational torque output.

3. Importance of Torque Calculation

Details: Proper torque calculation ensures the hydraulic motor can handle the load requirements without stalling or overheating.

4. Using the Calculator

Tips: Enter the system pressure in psi and motor displacement in cubic inches per revolution. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the relationship between pressure and torque?
A: Torque is directly proportional to pressure - doubling the pressure doubles the torque output.

Q2: How does motor displacement affect torque?
A: Larger displacement motors produce more torque at the same pressure but run at lower speeds.

Q3: Why divide by 2π in the formula?
A: This converts the units from in-lbs to lb-ft and accounts for the circular nature of torque.

Q4: What's a typical pressure range for hydraulic systems?
A: Most systems operate between 1500-3000 psi, but high-pressure systems can reach 5000+ psi.

Q5: How do I find my motor's displacement?
A: Check motor specifications or nameplate, usually listed as "displacement" in cubic inches per revolution.